About this item Double AttractionsEquipped with dual moving ball and a little bell, this cat track toy can attract your cats attention in 2 ways, cats will have endless fun hitting and chasing the moving balls, sounding the bell full of curiosity SafetyThe material of this toy odor-free, and connections between levels are detachable, cats can play with the cat tracks without worrying about being stuck Combined with Cat ScratcherThe diameter of this toy is customized to fit into most sizes of cat scratching posts. Assemble the cat track with scratcher, make your cats acquire double happiness Play Together Two or more cats play with this toy together, which will make the cat happier and enhance each other friendship Spinning Balls Keep Cats BusyThe cat toy stimulates your cats senses and hunting instincts, this will increase their sensitivity and will not cause persecution on the furniture at home